I think what the picture means by action means after the ball is snapped, so actual play. Each play I would say is about 10 seconds long, and about 100 plays per game so about 15 actual minutes of football played not counting clock run, play calling, penalties, challenges, pre-snap, ect.

i dont think youre understanding that during play calling, penalties, challenges, and most pre-snap, the clock ISNT RUNNING. so that doesnt take away time from the 60 minutes that are on the clock.

No, he's not talking about PLAY CLOCK he's talking about physical time that passes as each play is going, not the play clock, actual action on the field that's what like 4 other people have been saying are you that stupid?

It is around that, it obvs varies, but there was a count in the super bowl a few years ago, and it was about 15 minutes

I think 10 minutes is a bit low but I bet it's not far from it.
Don't forget that if the ball is run or there's a reception (along with other plays), the clock runs after the player is tackled.
But still like you said, with 15 mins in a quarter I think 10 minutes is still too low.

Yeah but also keep in mind that a) when the clock runs there is usually a play clock involved limiting the time that players have to start a play and b) teams know when the clock runs and also know that their time is valuable. When the clock runs you will definitely often see players rushing to get set up.

unless the team is intentionally wasting time from the clock but that usually happens in the last 3> minutes of the game.

Well yeah of course. The "action" time is less than 60 but I think it's definitely above 10 lol

100%. honestly i'd estimate at 45-50 minutes. not 10.

now that I think about it more at least